A shortcut for determining growth mode

doi:10.1088/1674-1056/22/10/107202

Abstract Thin and thick films of iron phthalocyanine (FePc) molecules are deposited on a Ag (110) surface. The nature of the FePc growth and the interaction with the substrate have been studied by X-ray photoelectron spectroscopy (XPS). All of the core level spectra exhibit rigid shifts towards lower binding energies following the deposition of the organic films, each by a different magnitude. A greater change and a larger shift in the Fe2p level as compared to C1s core level reveals that the adsorbate interacts with the substrate mainly via the Fe atom, located at the center of the molecule. An increase/decrease in the intensity of C1s/Ag3d level is found to be exponentially linked to the overlayer molecular coverage. Finally, the so-called growth/decay curve indicates that FePc thin films initially develop following the FM growth mode and then transform to SK mode, resulting in 3D island aggregation.

Keywords: iron phthalocyanine silver growth modes X-ray photoelectron spectroscopy

Received: 07 February 2013
Revised: 26 April 2013
Accepted manuscript online:

PACS:	72.80.Le	(Polymers; organic compounds (including organic semiconductors))
	34.20.Gj	(Intermolecular and atom-molecule potentials and forces)
	34.35.+a	(Interactions of atoms and molecules with surfaces)
	42.70.Jk	(Polymers and organics)

Fund: Project supported by the National Natural Science Foundation of China (Grants Nos. 10974172, 10774129, and 61106131) and the Fundamental Research Funds for the Central Universities.

Corresponding Authors: R. A. Rehman
E-mail: ateeq215@gmail.com

Cite this article:

R. A. Rehman, Cai Yi-Liang (蔡亦良), Zhang Han-Jie (张寒洁), Wu Ke (吴珂), Dou Wei-Dong (窦卫东), Li Hai-Yang (李海洋), He Pi-Mo (何丕模), Bao Shi-Ning (鲍世宁) A shortcut for determining growth mode 2013 Chin. Phys. B 22 107202

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A shortcut for determining growth mode

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